Phosphotidylinositol (PI) can be hydrolyzed into inositol 1,4,5-trisphosphate/diacylglycerol (IP3/DAG), the second signalling messengers which can be further phosphorylated by phospholipases to other signalling molecules, and phosphatidic acid (PA) and lysophosphoglyceride (lysoPI) involved in many signalling cascades. It has been shown that PI signalling pathway and the involved enzymes are critical for plant development and response to environmental factors. Three classes of phospholipases, named PLA2, PLC and PLD, were classified based on their cleavage sites, and the presence of variants of isoforms indicating their different functions in plant growth/development. The update information of phospholipases with focus on the interaction of plant hormone and environmental factors has been provided.
植物信号传导中的磷脂酶
林芳* 许智宏 薛红卫**
（中国科学院上海生命科学研究院植物生理生态研究所植物分子遗传国家重点实验室，
马普分子植物生理研究所植物分子生理和信号传导伙伴实验室，上海200032）
关键词： 高等植物；磷脂酰肌醇；磷脂酶；信号传导
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